ForArnold Schwarzenegger, theres nothing more American than celebrating 40 years of U.S. citizenship with apost on social media.

Schwarzenegger became a citizen on Sept. 17, 1983.

My fellow Americans, this an amazing moment for me, it begins.

Arnold Schwarzenegger

Arnold SchwarzeneggerJohn Russo/Getty Images

In school when the teacher would talk about America, I would daydream about coming here.

I would daydream about living here.

You know how proud I was?

‘North of North’

I was so proud that I walked around with the American flag around my shoulders all day long.

It is one of the proudest days of my life, Schwarzenegger wrote.

I owe everything to America.

Born in Austria, Made in America!

Schwarzenegger recently made his series television debut inNetflixs spy adventure seriesFubar,which was renewed for a second season.

The series tackles universal family dynamics set against a global backdrop of spies, action and humor.